Sunny Mabrey

Once Upon a Time has found its good witch!

The Client List alum Sunny Mabrey has been cast as Glinda the Good Witch of the South on the ABC fairy tale drama, TVGuide.com has confirmed.

As first reported by TVLine.com, Glinda is an elegant and wise witch, though years of isolation have made her lonely.

Lightning Round 11: Once Upon a Time bosses answer your burning questions

Mabrey joins the previously cast Rebecca Mader, who plays the Wicked Witch of the West. The second half of Once's season will take on a heavy Oz theme.

Mabrey's other credits include Memphis Beat and The Glades.

Get more scoop on the Wicked Witch in our recent Lightning Round!

Once Upon a Time returns Sunday, March 9 at 8/7c on ABC.